Filter
Top Products
Chapter 3 Interrupts
III - 4
Overview
3-1-2 Block Diagram
Figure 3-1-1 Interrupt Block Diagram
7 6 5 4 3 2 1 0
Interrupt
IRQNM1
Level
deter-
mined
IM1
IRQLVL
2-0
IM0
NMICR
Vector 1
Vector 2
Vector N
Vector 28
WDOG
IRQ0ICR
xxxIE xxxI
R
xxx
LV1-0
Peripheral
function
I/O
0
1 DEC
xxxLV : Interrupt Level
xxxIE : Interrupt Enable
xxxIR : Interrupt Request
2
xxx
ICR
xxxIE xxxI
R
xxx
LV1-0
Peripheral
function
I/O
0
1 DEC
xxxLV : Interrupt Level
xxxIE : Interrupt Enable
xxxIR : Interrupt Request
2
PSW
CPU core
PI
MIE
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0